Stop mechanism for talking-machines



F. c. HINCKLEY. STOP MECHANISM FOR TALKING MACHINES.

APPLICATION FILED APR. 25, 191.7.

PatentedSept. 13,1921.

3 SHEETS-SHEET 1| F. 0. HINCKLEY. STOP MECHANISM FOR TALKING MACHINES.

4 APPLICATION FILED APR. 26. I917- Patented Sept. 13, 1921.

FL 0.. HINCKLEY.. STOP MECHANISM FOR TALKING MACHINES.

- APPLICATION FILED APR. 26,II9I7.

PatentedSept. 13, 1921.

3 $HEETS-SHE ET 3.

attouwqs FRANK c. HINCKLEY, or BRIDGEPORT, commorroonnssrenon, BY MESNE ASSIGN MENTS, TO COLUMBIA GBAPHOPHONE MANUFACTURING COMPANY,

or BRIDGE- PORT, CONNECTICUT, A CORPORATION OF DELAWARE.

STOP MECHANISM FOR TALKING-MACHINES.

Specification of Letters Patent. Patented S t; 13 1921 Application Med April 26, 1917. Serial No. 164,725.

To all whom it may concern:

Be it known that I, FRANK C. Hmcxnnr, a citizen of the United States of America, and a resident of Bridgeport, Connecticut, have invented a new and useful Improvement in Stop Mechanism for Talking-Machines, which invention is fully set forth in the following specification.

This invention relates to stop-mechanism and, while capable of use in a wide variety of machines, has particular utility when applied to a talking machine An object of this invention is to provide a stop-mechanism which may be adiusted so as to render the same automatlcal y operative at a predetermined point in the movement of a traveling element or to render the same operative only by manual movement of such element.

A further object of this invention is to provide a stop-mechanism which may be adjusted either to render the same operative by movement of a traveling element in either of two directions or to render the same operative only by movement of such element in one of said directions.

A still further object of this invention 18 to provide a stop-mechanism, which ma be adjusted to render the same automatically operative at diiferent points in the movement of a traveling element, with means whereby the point at which the stopmeohanism becomes operative may be automatically predetermined by movement of the traveling element to a position corresponding to such point.

Yet another object of this inventlon is to provide a stop-mechanism particular-l designed for talking machines which is simple in construction, inexpensive to manufacture, easy to install, 'eflicient in operation, and which is controlled by the movement of a traveling element, such as the tone-arm, to automatically effect the stopping of the machine at selected points by predetermined adjustment ofthe parts.

Stated broadly, the invention comprises, in combination with a rotating element, such as a rotary record support, and a traveling element, such as a tone-arm, a stop-mechanism, which may desirably take. the form of a g vern r sk and brake-pad or engag ing the means, and coacting members one of which is operatively connected with the stop-mechanism to control the same and the other of which is moved by the traveling element or tone-arm, one of said members being adjustable to predetermine the point of actuation of the stop-mechanism or to render the stop-mechanism automatically operative either at a predetermined point in the movement of the traveling element or tone-arm or by reverse movement only of said travelin element or tone-arm. In the preferred em odiment of the invention, said adjustable member is moved by the tonearm and is provided with an arcuate face ada ted to coact with and maintain the stopmec anism out of operation during the normal movement of the traveling element or tone-arm, but to predeterminately release said stop-mechanism at a desired point in such movement; and said member controlling the stop-mechanism comprises an articulate bell-crank lever, a jointed portion of which is adapted toengage said arcuate face and to be moved thereby with respect to the body of the lever by movement of the adjustable member in one direction. Means are also preferably carried by the adjustable member for coaction with a fixed stop whereby said adjustable member may be predeterminately positioned by engagement with said stop during a setting movement of the traveling element or tone-arm.

The invention is capable of receiving a variety of mechanical expressions, one of which is shown on the accompanying drawings, but it is to be expressly understood that the said drawings are for purposes of illustration only, and are not to be construed as a definition of the limits of the invention, reference being had to the appended claims for that purpose.

Referring to the drawings wherein the same reference characters designate corresponding parts in the several figures- Figure 1 is a plan view of a talking machine embodying the present invention and showing the relation of the parts during the normal operation of the machine;

Fig. 2 is a similar view showing the relation assumed by the parts upon the stopping of the machine;

Fig. 3 is an enlarged elevation of the stopmechanism applied to a talking machine;

Fig. 4c is a detail of the device for automatically setting the adjustable member;

Fig. 5 is a detail of the stop-releasing member; and

Fig. Gis an enlarged plan of the machine of Figs. 1' and 2 but showing the stop-mechanism adjusted to be operable only by manual movement of the tone-arm.

- 1 designates any suitable talking machine motor, 2 the motor-board, 3 the turn-table. 4 the record-tablet, 5 any suitable form of sound-box, 6 the reproducing stylus, and 7 the tone-arm. All ofthese parts are conventional and need no detailed description.

While, as respects certain features of this invention, any suitable form of stop-mechanism may be employed, in accordance with the preferred embodiment of this invention a governor 8 of any suitable construction is driven from the talking machine motor and comprises a governor disk 9 movable along the governor shaft 10 in accordance with the position assumed by the governor weights under the centrifugal force developed by the rotation of'the parts. To stop the rotation of the governor disk, and therefore the motor, a brake-pad 11 is mounted to suitably en gage and brake'the same, being carried, in the form shown, on a lever 12 pivoted at 13 to the motor-board and normally urged into contact with the governor disk 9 by a tension spring 12' connected at its opposite ends to said lever and to the motor-board, respectively.

Any suitable means for releasing the brake-pad from engagement with the governor disk may be employed, and said releasing mechanism may be either manually operated or automatically operated by the movement of the tone-arm inwardly to the beginning of the record. In the form shown on thedrawings, a lever 14 is pivoted to the motor-board at 15 and provided at one end- .with an operatingtoe 16 adapted to engage a projection 17 upon the lever 12, and at its opposite end saidlever 14 is extended to a position wherein it maybe readily grasped and operated by the hand and there provided with a suitable knob 18. To normally maintain said lever 14 in a position wherein its toe 16 is out of engagement with the projection 17, a sprin 19 .is coiled about the pivot of said lever see Fig. 5) with one end secured thereto and the other end engaged with a suitable lug 20 projecting from the motor-board.

The opposite end of lever 12 is shown extended to a positon adjacent the axis of movement of the tone-arm and there provided with a pivotally mounted latch 21 movable about the axis determined by the pivoted stud 22. The inner end of latch 21 is cut away to provide a shoulder 23 designed to normally engage a stop pin 24 carried by said lever 12. To normally maintain shoulder in engagement with pin 2%, a spring 25 is coiled about the stud 22 with one end secured thereto and its opposite end secured to a depending lug 26 on the outwardly extending end of said latch.

Frictionally secured to the tone-arm to move therewith is a member 27 provided with an arcuate face 28 and an abrupt shoulder 28, said face being concentric with the axis of movement of the tone-arm. Any suitable means may be provided for causing member 27 to move with the tone-arm while leaving the same frictionally adjustable with respect thereto. In the form shown, said member is suitably connected preferably integrally, to an arm 29 which embraces the downwardly extending end 30 of the tone-arm and which is frictionally sccured thereto through the interposition of friction washers 31 upon either side thereof between said arm and metal washers 32 which may be desirably keyed to the tonearm. To cause the washers 31 to frictionally grip the arm 29, a spring 33 is interposed between the lower of the metal washers 32 and a washer 34 carried by the tonearm. To give the arm 29 and member 2'? added strength and rigidity, an arcuate shield 35 may be suitably attached to the member 27 as by rivets 36, said shield partly embracing and conforming in shape to the outer surface of the thinible in which the tone-arm oscillates about a vertical axis. Any convenient means may be provided for moving the member 27 manually about the axis defined by the depending end of the tone-arm and, in the form shown, a knob 37 projects upwardly from the upper face of said member into a position where it may be readily grasped and operated by the hand. To enable the member 27 to be set so that its shoulder 28 shall come opposite the latch 21 when the tone-arm reaches that position at which it is desired that the muchine shall be stopped, and also to enable the member 27 to be automatically adjusted under certain conditions by the inward movement of the tone-arm, said member 27 is provided with a depending lug 38 adapted to coact with a second lug secured to and projecting upwardly from the motor-board.

In operation. the tone-arm and sound-box are positioned with the reproducing stylus in the last grove of the record, or at such other position as it may be desired that the machine shall stop, and member 27 is then moved by grasping knob 37 until lug 38 engages lug 39. Shoulder 28 is now opposite the outer end of latch 21. The tone-arm may now be swung to the beginning of the record without affecting the setting of the member 27, as the engagement of said member with the latch will simply cause the latter to swing about its pivot 22. Lever 14 is then swung from the position shown in'full lines in Fig. 2 to the position shown in dotted lines therein. Such movement of lever 14 will engage toe 16 with projection 17 and withdraw brake-pad 11 from engagement with governor disk 9. Movement of the lever 12 by toe 16 will also withdraw latch 21 from engagement with member 27 and spring 25 will swing said latch about its pivot 22 until shoulder 23 engages stop 24.

f the lever 14 be now released, spring 19 will return said lever to its initial position as shown in full lines in Figs. 1 and 2. Brake-pad 11 cannot renga e disk 9, however, as latch 21 will engage the arcuate surface 28 of member 27 and hold the lever 12 against the tension of the spring 12 in the position shown in Fig. 1. The tone-arm and sound-box may now traverse the record and, when the reproducing stylus reaches the last groove of the record or other point previously predetermined, shoulder 28 will come opposite latch 21 whereupon said latch will snap past said shoulder owing to the tension of spring 12, and brake-pad 11 will be thrown into en agement with governor disk 9, stopping t e rotation thereof and therefore stopping the motor. The tone-arm may now be moved outward to the periphery of the record without releasing the stopmechanism, as the movement of the member 27 in an anti-clockwise direction will simply swing latch 21 about its pivot 22.

In predeterminately setting the member 27, if lug 38. engage lug 39 during inward movement of the tone-arm before the reproducing stylus reaches that position at which it is desired the machine shall be stopped, said member 27 may be automatically adjusted to the desired point by simply moving the reproducing stylus to the selected stopping position. Consequently, by pre viously swinging member 27 in a clockwise direction to a considerable extent while the tone-arm is adjacent the periphery of the record, said member may be always automatically set to stop the machine at any desired point by moving the sound-box to the desired position and then returning the same to the periphery of the record.

If it be desired that the machine shall not stop automatically at a predetermined point in the travel of the tone-arm, member 27 is swung in an anti-clockwise direction to such a position that latch 21 will never leave the arcuate face of said member within the extreme limits of its travel. If desired, a suitable stop may be provided against which this member may be moved to predetermine this position. Now, when lever 14 is swung from full line position to dotted line position in Fig. 2, the brake-pad will be held disengaged from the governor disk 9 by engagement of the latch 21 with the arcuate ,face 28 of the member 27 as heretofore described. When the sound-box reaches the last groove of the record tablet, however, the machine will not be automatically stopped but the motor will continue to run until the tone-arm is moved toward the beginning of the record. Immediately that the direction of movement of the tone-arm is reversed, however, member 27, by wiping over latch 21, will swing-the latter about its pivot 22 against the tension of spring 25 from the position shown in full. lines in Fig. 6 to the position shown in dotted lines in this figure, permitting spring 12 to reengage brake-pad 11 with governor disk 9. This position of the parts will be maintained until lever 14 is again moved to dotted line position, when the latch 21, withdrawn from engagement with the member 27, will be swung about its pivot 22 by spring 25 until shoulder 23 again engages stop 24.

It will be noted that, even when the stopmechanism is set to stop the machine automatically at a predetermined point, brakepad 11 may be always brought into engage-- ment with governor disk 9 to stop the motor in the manner just described by simply moving the tone-arm toward the beginning of the record.

It will therefore be perceived that a stop mechanism has been devised which may be adjusted to stop the machine automatically at a predetermined point in the movement of the tone-arm or traveling element, or to stop the same only by a manual movement of the tone-arm or traveling element; that, under the former condition, the stop-mechanism may be rendered operative by movement of the tone-arm or traveling element in either direction, while under the latter condition the stop-mechanism may be rendered operative only by movement of the tone-arm or traveling element in one of the two directions; furthermore, that the stopmcchanism may be automatically set to operate at a predetermined point by movement of the tone-arm or traveling element in one direction; also that a stop-mechanism has been, devised, comprising a minimum number of parts, that is inexpensive to manufacture, easy to install, ellicient in operation. and one that is under the direct control of the tone-arm or traveling element, while adjustable to operate at different points predetermi n ately.

l Vhile the embodiment illustrated on. the drawings has been described with considerable particularity, it is to be expressly un derstood that the invention is not to be restricted to the precise form there illustrated, for it is capable of receiving a variety of mechanical expressions, some of which. will readily suggest themselves to those skilled in the art. while certain features thereof are capable of use without other features thereof. Reference is therefore to be had to the claims hereto appended for a definition of the limits of this invention.

What is claimed is 1. The combination with a rotary recordsupport and a tone-arm, or" a member moved by said tone-arm and provided with a shoulder, stop-mechanism and controlling means for said stop-mechanism comprising a oneway collapsible member cooperating with said first-named member and effecting the actuation of said stop-mechanism upon passing said shoulder.

2. The combination with a rotary recordsupport and a tone-arm, of a member moved by said tone-arm, said member being provided with an arcuate surface and a shoul der, stop-mechanism and controlling means for said stop-mechanism comprising a oneway collapsible member engaging said arenate surface and eitecting the actuation of said stop-mechanism upon passing said shoulder.

3.. The combination with a rotary recordsupport and a tone-arm, of a member moved by said tone-arm and provided with a shoulder said member being adjustable to vary the position of said shoulder, stop-mechanism, and controlling means for said stepmechanism comprising a one-way collapsible member cooperating with said first-named 'member and effecting the actuation of said stop-mechanism upon passing said shoulder.

4:. The combination with a rotary recordsupport and a tone-arm, of a member moved by said tone-arm, said member being provided with a shoulder anda face concentric with the axis of movement of said tonearm, stop mechanism, a one-way collapsible member for maintaining said stop mecha nism inoperative by engagement with said concentric face, and means to effect the actuation of said stop mechanism upon said second-named member passing said shoulder.

5. The combination with rotary recordsupport and a tone-arm, of stop-mechanism, and controlling means therefor comprising a member moved by said tone-arm and pro vided with a shoulder, a lever opera-tively related to said stop-mechanism, a one-way collapsible latch pivoted to said lever and engaging said member, and a spring to restore said latch to normal position after collapse.

6. The combination with a rotary record support and a tone-arm, of an. adjustable member moved by said tone-arm and provided with a shoulder, stop-mechanism, means controlling'said stop-mechanism and coacting with said member, and means to predeterminately position said shoulder with respect to said controlling means comprlsing a stationary abutment and means carried by said member adapted to coact with said stationary abutment.

7. The combination of a pivoted element, an adjustable member provided with a shoulder moved by said element, stop-mechanism, controlling means therefor coacting with said member, and means to predcterminately position said shoulder with respect to said controlling means comprising a stationary abutment and means carried by said member for coaction therewith.

8. The combination of a pivoted clement, an adjustable member provided with a shoulder moved by said element, stop-mechanism, controlling means therefor coacting with said member. and means to predeterminatelv position said shoulder with respect to said controlling means by pivotal movement of said element.

9. The combination with a rotary recordsupport and a tone-arm, of stop-mechanism. and means for controlling said stopmechanism comprising coacting members one of which is moved by said tone-arm, said members effecting the application of said stopmechanism upon initial outward movement of said tone-arm toward starting position.

10. The combination with a rotary recordsupport and a tone-arm, of stop-mechanism. and means for controlling said stop-mechanism comprising coacting members one of which is moved by said tone-arm. said members maintaining said stop-mechanism inoperative during movement of said tonearm inwardly and effecting application of said stop-mechanism upon initial movement of said. tone-arm in the opposite direction.

11. The combination with a rotary recordsupport and a tone-arm nro iellcd thereby, of stop-mechanism. and means tor controlling said stop-mechanism comprising a member moved by said tone-arm and adjustable to render said stop-mechanism predeterminately operative by movement of said tone-arm by the record or to render the same operative only by manual movement of said tone-arm in the opposite direction.

12. The contibination with a rotary recordsupport and a tone-arm, oil? stop-mochanism, and means for controlling said sto rmechanism comprising a member adjustable to render said stop-mechanism operative by movement of the tone-arm in one direction only or by movement of the tone-arm in either direction.

13. The combination with a rotary rccordsupport and a tone-arm, of stop-mechanism, and means for controlling said stop-mechanism comprising a member adjustable to render said stop-mechanism automatically operative at a predetermined position by movement of the tone-arm in one direction or operative only by movement of the tone-arm in the opposite direction.

14. The combination of a pivoted element, a stop-mechanism, and means for controlling said stop-mechanism comprising a member moved by said pivoted element and adjustable to render said stop-mechanism operative by movement of said element in either direction or in one direction only.

15. The combination with a rotary recordsupport and a tone-arm, of a member moved by said tone-arm and provided with a shoulder, stop-mechanism, a controlling member therefor movable toward and away from said firstnamed member, a pivoted latch carried by said second-named member and engaging sai rl first-named member, a spring for normally maintaining said latch in predetermined relationship to said second-named member, and a spring for urging said second-named member toward said first-named member and operating said stop-mechanism when said latch passes said shoulder.

16. The combination with a rotary recordsupport and a tone-arm, of stop-mechanism, a member controlling said stop-mechanism, a pivoted latch carried thereby, a spring for moving said member into sto -operating position, and a member move by said tonearm and engaging said latch, said secondnamed member maintaining said first-named member out of stop-operating position during movement of the tone-arm in one direction but moving said latch with respect to said first-named member to permit stop-operating movement of said firstnamed member upon movement of the tone-arm in the opposite direction.

17. In combination with a rotatable record-support and a tone-arm, of a shoe normally movable with the tone-arm, an

abutment in the path of said shoe, means permitting the shoe to be moved against said abutment independently of the tone-arm, a brake, and an operating member :for the brake having an extension projecting behind the heel of said shoe when the latter is in place against said abutment, said extension collapsing as the shoe is moved heel first in moving the tone-arm in one direction but remaining rigid when the shoe is moved toe first.

18. In combination with a rotatable record-support and a tone-arm, of means adapted to stop the rotation of said recordsupport, said means comprising a shoe adjustable on but movable with the tone-arm, and a contact member adapted to follow the contour of said shoe in only one direction of movement of the tone-arm, opposite movement of said tone-arm causing said contact member to collapse whereon the record-sup port is automatically stopped.

19. In combination with a rotatable recordsupport and a tone-arm, of a member movable with the tone-arm, means acted upon by said member adapted to stop the rotation of said record-support, said means including a member which is collapsible in only one direction of movement of the tone-arm, and

means for adjusting the first-mentioned member with respect to said collapsible member.

20. In combination with a rotatable recordsupport and a tone-arm, of a brake lever having a one-way collapsible extension, means movable with the tone-arm for con trolling the brake lever and means for adjusting said means with respect to said extension to permit the brake lever to function at a definite point.

. 21. In combination witharotatable recordsupport and a tone-arm, of a cam member movable with the tone-arm, and means acted upon by said cam member adapted to stop the rotation of said record-support, said means comprising, as part of a movable member, an extension which contacts with and is collapsible in one direction of move ment of saidcam member.

22. In combination with a rotatable recordsupport and a tone-arm, of means adapted to stop the rotation of said record-support, said means comprising a cam member and a one-way collapsible member, said members being relatively movable and said collapsible member being collapsible in only one direction of movement of the tone-arm.

23. In combination with a rotatable recordsupport and a tone-arm, of means adapted to stop the rotation of said record-support, said means comprising an arcuate and a lever having a hook-like terminal, said ter minal being collapsible in one direction of movement of the tone-arm.

24. The combination of a rotary recordsupport, a tone-arm, a stop device, a member embracing the tone-arm and controlling the stop device, and a frictional driveintermediate said member and the tone-arm comprising one or more metal rings engaging the member and secured to the tone-arm to rotate therewith, and a spring maintaining the rings in frictional engagement with the member.

25. The combination of a rotary recordsupport, a sound-conveying element, a bracket, a brake lever pivoted on the bracket and provided with a shoulder, a latch pivoted on the lever and provided with a shoulder, a spring intermediate the latch and bracket to maintain the shoulders in engagement, and a member moved by the soundconveying element and engaging the latch to control the brake lever.

26. The combination of a rotary recordsupport, a sound-conveying element, a member moved thereby, a brake lever provided with a shoulder, a latch provided with a shoulder, a lateral projection and a toe adapted to engage the movable member, and a spring normally maintaining the shoulders in engagement.

27 In combination with a rotatable recordsupport and a tone-arm, a stop mechanism,

stop mechanism comprising means cooperatively connecting the tone-arm and stop mechanism, and adapted to actuate the stop mechanism at a predetermined point of the traverse of the tone-arm in one direction, and adapted to actuate the stop mechanism at any point of the traverse of the tonearm upon movement of the tone-arm in opposite direction.

In testimony whereof I have signed this specification.

FRANK C. HINCKLEY.

It is hereby certified that in Letters Patent No. 1,390,712, granted September 13, 1921, upon the application of Frank C. Hinckley, of Bridgeport, Connecticut, for an improvement in Stop Mechanism for Talking-Machines, an error appears in the printed specification requiring correction as follows: Page 1,1ine 53, for the Word means read same; and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 3d day of January, A. D., 1922.

'[sEAL] WM. A. KINNAN,

Acting Commissioner of Patents. 

